<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>grid布局</title>
    <link rel="stylesheet" href="./grid布局.css">
</head>

<body>
    <div class="container">
        <div class="item">1</div>
        <div class="item two">2</div>
        <div class="item">3</div>
        <div class="item four">4</div>
        <div class="item">5</div>
        <div class="item">6</div>
        <div class="item">7</div>
        <div class="item">8</div>
        <div class="item">9</div>
        <div class="item">10</div>
        <div class="item">11</div>
        <div class="item">12</div>
        <div class="item">12</div>
        <div class="item">12</div>
        <div class="item">12</div>
    </div>
</body>

</html>